Just like caching in a computer system improves memory efficiency, caching on World Wide Web helps reduce load on server, slashes down bandwidth usage and reduces the apparent time lag. Web Caching implicates caching of web pages (including images, HTML pages etc.) in the local hard disk of an Internet user, as well as, stored instances of web pages in the search engine database, which are of prime most interest to any web promotion specialist.

Any affordable web promotion campaign values web caching, as it significantly improves the browsing experiencing for the internet user within limited bandwidth and server resources. An affordable search engine optimization firm or web site promotion firm appreciates the web caching feature of search engines, as it facilitates internet surfing in terms of moving backwards and forwards between web pages using back and forward buttons.